fix(hierarchy): should update :block/namespace while renaming page

[situ2001]

close #8253

Because renaming the namespace page is happened from top to bottom of the hierarchy, it is very straightforward to add a function that updates :block/namespace of a block to its parent block or removes :block/namespace of a block. If there is no parent block, the code invokes create! to create it, for example, renaming aa to aa/bb/cc/dd will automatically create aa, aa/bb, aa/bb/cc if not exist.

BTW, there is currently no description for the namespace in logseq doc so I can't get full or correct understanding of how renaming a namespace page work.

The behavior of renaming the namespace block is summarized that changing the name of a namespace page, the name of the page, and its sub-namespace page will be changed.

Imagine there are some pages.

1
1/2
1/2/4
1/2/5
1/3
1/3/6
1/3/7

Changing from 1/3 -> 1/4 will cause

1/3 -> 1/4
1/3/6 -> 1/4/6 ;; namespace is changed from 1/3 to 1/4
1/3/7 -> 1/4/7 ;; namespace is changed from 1/3 to 1/4

Other situation

• Changing from aa/bb -> aabb will remove :block/namespace of this page.
• Changing from tony -> cat/tony will add :block/namespace of this page to cat. If cat does not exist, cat page will be created.

I have no idea where to write the test for this fix(or maybe a feature?) because I didn't find the test that simulates an env that has DataScript DB.

This is my first time contributing to the codes that involve to DataScript DB transactions. Please review it carefully. Thanks.

[andelf]

LGTM

[cnrpman]

BTW, there is currently no description for the namespace in logseq doc so I can't get full or correct understanding of how renaming a namespace page work.

Yes, the document is missing 👀

I have no idea where to write the test for this fix(or maybe a feature?) because I didn't find the test that simulates an env that has DataScript DB.

We have test for db model but fine to leave it to future

logseq/src/test/frontend/db/model_test.cljs

Line 1 in d0af76d

(ns frontend.db.model-test

[cnrpman]

Smart :)

[cnrpman]

LGTM.
Need @tiensonqin to have a confirm as it's about DB ops

[logseq-cldwalker]

BTW, there is currently no description for the namespace in logseq doc so I can't get full or correct understanding of how renaming a namespace page work.
Good point! Hopefully we address this soon

I have no idea where to write the test for this fix(or maybe a feature?) because I didn't find the test that simulates an env that has DataScript DB.

@situ2001 Tests that are using the test-helper load-test-files or test-db, exercise the datascript db. The nice thing about load-test-files is that you can write tests from the user perspective e.g. the files and the exact content that they would have. If you'd like to write tests for this per #8298, happy to review it and give guidance as needed